Laminaria digitata

Jordan P, H Vilter (1991) Extraction of proteins from material rich in anionic mucilages partition and fractionation of vanadate-dependent bromoperoxidases from the brown algae Laminaria digitata and L. saccharina in aqueous polymer two-phase systems. Biochim Biophys Acta 1073 98-106. [Pg.140]

Hypobromous acid so produced from the naturally occurring bromide in the ocean is rapidly consumed upon demand and is nontoxic to the plant. This natural process helps explain why seaweeds in the ocean are not overcome by adherent microbial biomass and macrofoulants that, for example, rapidly foul the surfaces of ships and piers in the sea. Although chloride is far more abundant than bromide, certain seaweeds preferentially make hypobromous acid in situ. The brominating activity of Laminaria digitata is shown by demonstration (Figure 3) in a replication of the work by Wever, et al.2. [Pg.54]

Figure 3 Bromination of phenol red by Laminaria digitata in seawater (see Wever). Beakers from left to right 1) seawater plus phenol red, 2) same as 1 plus H202, 3) same as 1 plus Laminaria 4) same as 2 plus Laminaria Phenol red is converted by the bromination.

These materials are another polysaccharide. The name derives from its original source, brown algae. The current commercial sources are brown seaweeds such as Laminaria digitata, L. hyperborea, Ascophyllium nodosum and Fucus serratus. Different properties are obtained in alginates from different seaweeds. The sources are rocky coasts in the United States, the United Kingdom, France and Norway. [Pg.115]

Kelp, Laminaria digitata 100 Growth inhibition in 24 days 1... [Pg.686]

Penot, M. and C. Videau. 1975. Absorption du 86Rb et du "Mo par deux algues marines le Laminaria digitata et le Fucus serratus. Z. Pflanzenphysiol. Bd. 76(Suppl.) 285-293. [Pg.1576]

Quantitative data are available by placing droplets of an inert solvent with known concentrations of the test substance into close vicinity of the fertile gynogametophyte. For example, the mass release of male gametes of Laminaria digitata occurs within 8-12 sec at a threshold of =50 pmol of lamoxirene (8, 23, 24), and male gametes of Perithalia caudata are released within =10 sec, triggered by caudoxirene at concentrations down to 30 pmol (25). [Pg.101]

Crepineau F, Roscoe T, Kaas R, Kloareg B, Boyen C (2000) Characterisation of complementary DNAs from the expressed sequence tag analysis of life cycle stages of Laminaria digitata (Phaeophyceae). Plant Mol Biol 43 503-513... [Pg.265]

Orozco-Cardenas ML, Narvaez-Vasquez J, Ryan CA (2001) Hydrogen peroxide acts as a second messenger for the induction of defense genes in tomato plants in response to wounding, systemin, and methyl jasmonate. Plant Cell 13 179-191 Palmer CJ, Anders TL, Carpenter LJ, Ktipper FC, McFiggans G (2005) Iodine and halocarbon response of Laminaria digitata to oxidative stress and links to atmospheric new particle production. Environ Chem 2 282-290... [Pg.269]

Rea G, Metoui O, Infantino A, Federico R, Angelini R (2002) Copper amine oxidase expression in defense responses to wounding and Ascochyta rabiei invasion. Plant Physiol 128 865-875 Roeder V, Collen J, Rousvoal S, Corre E, Leblanc C, Boyen C (2005) Identification of stress gene transcripts in Laminaria digitata (Phaeophyceae) protoplast cultures by Expressed Sequence Tag analysis. J Phycol 41 1227-1235... [Pg.269]

Machlis L, Hill GGC, Steinback KE, Reed W (1974) Some characteristics of the sperm attractant from Oedogonium cardiacum. J Phycol 10 199-204 Maier I (1982) New aspects of pheromone-triggered spermatozoid release in Laminaria digitata (Phaeophyta). Protoplasma 113 137-142... [Pg.308]

Hypochlorite and hypobromite disinfectants have been shown to chemically degrade AHLs with 3-oxo substitutions (Scheme 3) [47]. Similarly, the brown algae Laminaria digitata produces a haloperoxidase which generates hypobromite and consequently can inactivate AHLs [108]. [Pg.316]

N.A. Laminaria digitata (Hudss.) Lank. L. longicruris Lank. L. saccharine (L.) Lank. Phenols, polysaccharides, iodine 284,285,286,287,288 Treat iodine deficiency, antibiotic, promote hormone production. [Pg.275]

Allium sativum, A. fistulosum, A. tuberosum, Artemisia dracunculus, Hedera helix, Laminaria digitata,... [Pg.520]

Eleutherocossus senticosus, Gelidium cartilagineum, Laminaria digitata, L. saccharine, L. longicruris, Lobelia pulmonaria, Panax ginseng, P. quinquefolium, Phragmites australis, Prunus mume, Urtica urens Populus tremuloides... [Pg.530]

Alain at AJainic Arid 15 a protein of marine algae and is found in many seaweeds. Its principal source of prepn is as a by-product of the extraction of iodine from kelp, principally from Laminaria digitata. It has been used mainly in Japan, for the prepn of films, fabric dressing, and for thickening jellies. [Pg.124]

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